reSolve: Bifold Boxes Image

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reSolve: Bifold Boxes

This lesson challenges students to use proportional reasoning to explain how changing the size of a square will affect the size of a box folded from that square. Students fold an origami box from a square of paper and record the dimensions of the resulting box. They then fold a box from a square of paper four times the area, and explore how this changes the dimensions of the new box. The lesson is outlined in detail including curriculum links, vocabulary, materials needed, discussion points, a slide show describing how to fold the box and a link to a video demonstration. This sequence is part of the reSolve: Mathematics by Inquiry program.

Additional details

Year level(s) Year 5
Audience Teacher
Purpose Teaching resource
Format Downloadable resources
Teaching strategies and pedagogical approaches Mathematics investigation
Keywords solids, shapes, nets, origami, scale, explicit teaching

Curriculum alignment

Curriculum connections Numeracy
Strand and focus Geometry, Build understanding, Apply understanding
Topics Shapes and objects
AC: Mathematics content descriptions
ACMMG111 Connect three-dimensional objects with their nets and other two-dimensional representations
ACMMG115 Apply the enlargement transformation to familiar two dimensional shapes and explore the properties of the resulting image compared with the original
National numeracy learning progression Understanding geometric properties - UGP3
Understanding units of measurement - UuM7

Copyright details

Organisation

reSolve Maths by Inquiry

Copyright

© Australian Government Department of Education, Skills and Employment 2021. Creative Commons BY-NC-SA 4.0.